NOTE 3. GOODWILL

The following is a rollforward of our goodwill ($ in millions):


Balance, December 31, 2016	$	3,979.0
Foreign currency translation & other		20.2

Balance, March 31, 2017	$	3,999.2

The carrying value of goodwill by segment is summarized as follows ($ in millions):


	March 31, 2017		December 31, 2016
Professional Instrumentation	$	2,435.9	$	2,423.7
Industrial Technologies		1,563.3		1,555.3

Total goodwill	$	3,999.2	$	3,979.0

We have not identified any “triggering” events which would have indicated a potential impairment of goodwill in the three months ended March 31, 2017.